51
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Two star-shaped small molecule donors based on benzodithiophene unit for organic solar cells. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2021.06.023] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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52
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Ge Y, Xiao X, Yao G, Yuan S, Zhang L, Zhou W. Dual Interface Protection for High Performance and Excellent Long-Term Stability of Organic Solar Cells. ACS APPLIED MATERIALS & INTERFACES 2021; 13:57664-57672. [PMID: 34843202 DOI: 10.1021/acsami.1c15792] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Stability is still the main barrier to the commercial application of organic solar cells (OSCs), although the maximal power conversion efficiency (PCE) value has exceeded 19%. The encapsulation technique is an effective and vital way to guarantee the long-term stabilities of OSCs, but it can only avoid the penetration of water and oxygen from the environment. Herein, we introduced a structure that provides dual interface protection by using commercially available and chemically stable polyvinylidene fluoride (PVDF) as the cathode interface protection layer working as the cathode interlayer (CIL) and poly(styrene-comethyl-methacrylate) (PS-r-PMMA) as the anode interface protection layer between the poly(3,4-ethylenedioxythiophene)/poly(styrene sulfonate) (PEDOT:PSS) and the active layer. With this structure, both the migration of impurities caused by degradation of the interfacial layer and the infiltration of oxygen and water in the air can be prevented. PVDF can effectively provide optimal electron transfer by improving the surface potential of active layers and lowering the work function of the Al electrode. PS-r-PMMA can improve the hydrophobicity of PEDOT:PSS and induce optimized phase separation, facilitating charge transfer. After storage in an air environment with a humidity of approximately 60% for 3600 h, the device based on the PM6:IT-4F blend film with dual interface protection showed a decrease in its PCE value from 13.43 to 10.90%, retaining 81.2% of its original PCE value, in contrast to the sharp decrease in the PCE value from 13.66 to 0.74% of the device without dual interface protection. The dual interface protection design could also be useful in the high-performance PM6:Y6 system, which shows a champion PCE of 15.39% and shows potential for the effective fabrication of stable OSCs in the future.
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Affiliation(s)
- Yansong Ge
- School of Material Science and Engineering, Nanchang University, 999 Xuefu Avenue, Nanchang 330031, China
| | - Xinyu Xiao
- School of Material Science and Engineering, Nanchang University, 999 Xuefu Avenue, Nanchang 330031, China
| | - Ge Yao
- School of Material Science and Engineering, Nanchang University, 999 Xuefu Avenue, Nanchang 330031, China
| | - Shuaishuai Yuan
- Key Lab of Biobased Polymer Materials of Shandong Provincial Education Department, College of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, P.R. China
| | - Lin Zhang
- Hunan Key Laboratory for Super Microstructure and Ultrafast Process, School of Physics and Electronics, Central South University, Changsha 410083, China
| | - Weihua Zhou
- School of Material Science and Engineering, Nanchang University, 999 Xuefu Avenue, Nanchang 330031, China
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53
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Radford CL, Kelly TL. Controlling solid-state structure and film morphology in non-fullerene organic photovoltaic devices. CAN J CHEM 2021. [DOI: 10.1139/cjc-2021-0134] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Organic solar cells (OSCs) have long promised to provide renewable energy in a scalable, cost-effective way; however, for years, their relatively low efficiency has been a significant barrier to commercialization. Recent progress on cell efficiency means that OSCs are now much more competitive with other established technologies. These key advancements have come from better understanding and controlling the molecular structure, solid-state packing, and film morphology of the light absorbing layer. This focused review will explore the different ways that the solid-state structure and film morphology of the light absorbing layer can be controlled. It will examine the key features of an efficient light absorbing layer and present guiding principles for creating efficient OSCs. The future directions and remaining research questions of this field will be briefly discussed.
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Affiliation(s)
- Chase L. Radford
- Department of Chemistry, University of Saskatchewan, 110 Science Place, Saskatoon, SK S7N 5C9, Canada
- Department of Chemistry, University of Saskatchewan, 110 Science Place, Saskatoon, SK S7N 5C9, Canada
| | - Timothy L. Kelly
- Department of Chemistry, University of Saskatchewan, 110 Science Place, Saskatoon, SK S7N 5C9, Canada
- Department of Chemistry, University of Saskatchewan, 110 Science Place, Saskatoon, SK S7N 5C9, Canada
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54
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Bao S, Yang H, Fan H, Zhang J, Wei Z, Cui C, Li Y. Volatilizable Solid Additive-Assisted Treatment Enables Organic Solar Cells with Efficiency over 18.8% and Fill Factor Exceeding 80. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2105301. [PMID: 34850986 DOI: 10.1002/adma.202105301] [Citation(s) in RCA: 64] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2021] [Revised: 08/24/2021] [Indexed: 06/13/2023]
Abstract
Controlling the self-assembling of organic semiconductors to form well-developed nanoscale phase separation in the bulk-heterojunction active layer is critical yet challenging for building high-performance organic solar cells (OSCs). Particularly, the similar anisotropic conjugated structures between nonfullerene acceptors and p-type organic semiconductor donors raise more complexity on manipulating their aggregation toward appropriate phase separation. Herein, a new approach to tune the morphology of photoactive layer is developed by utilizing the synergistic effect of dithieno[3,2-b:2',3'-d]thiophene (DTT) and 1-chloronaphthalene (CN). The volatilizable solid additive DTT with high crystallinity can restrict the over self-assembling of nonfullerene acceptors during the film casting process, and then allowing the refining of phase separation and molecular packing with the simultaneous volatilization of DTT under thermal annealing. Consequently, the PTQ10:m-BTP-PhC6:PC71 BM-based ternary OSCs processed by the dual additives of CN and DTT record a notable power-conversion efficiency of 18.89%, with a remarkable FF of 80.6%.
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Affiliation(s)
- Sunan Bao
- Laboratory of Advanced Optoelectronic Materials, Suzhou Key Laboratory of Novel Semiconductor-Optoelectronics Materials and Devices, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, China
| | - Hang Yang
- Laboratory of Advanced Optoelectronic Materials, Suzhou Key Laboratory of Novel Semiconductor-Optoelectronics Materials and Devices, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, China
| | - Hongyu Fan
- Laboratory of Advanced Optoelectronic Materials, Suzhou Key Laboratory of Novel Semiconductor-Optoelectronics Materials and Devices, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, China
| | - Jianqi Zhang
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, 100190, China
| | - Zhixiang Wei
- CAS Key Laboratory of Nanosystem and Hierarchical Fabrication CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, 100190, China
| | - Chaohua Cui
- Laboratory of Advanced Optoelectronic Materials, Suzhou Key Laboratory of Novel Semiconductor-Optoelectronics Materials and Devices, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, China
| | - Yongfang Li
- Laboratory of Advanced Optoelectronic Materials, Suzhou Key Laboratory of Novel Semiconductor-Optoelectronics Materials and Devices, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, China
- Beijing National Laboratory for Molecular Sciences CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
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55
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Miao J, Wang Y, Liu J, Wang L. Organoboron molecules and polymers for organic solar cell applications. Chem Soc Rev 2021; 51:153-187. [PMID: 34851333 DOI: 10.1039/d1cs00974e] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Organic solar cells (OSCs) are emerging as a new photovoltaic technology with the great advantages of low cost, light-weight, flexibility and semi-transparency. They are promising for portable energy-conversion products and building-integrated photovoltaics. Organoboron chemistry offers an important toolbox to design novel organic/polymer optoelectronic materials and to tune their optoelectronic properties for OSC applications. At present, organoboron small molecules and polymers have become an important class of organic photovoltaic materials. Power conversion efficiencies (PCEs) of 16% and 14% have been realized with organoboron polymer electron donors and electron acceptors, respectively. In this review, we summarize the research progress in various kinds of organoboron photovoltaic materials for OSC applications, including organoboron small molecular electron donors, organoboron small molecular electron acceptors, organoboron polymer electron donors and organoboron polymer electron acceptors. This review also discusses how to tune their opto-electronic properties and active layer morphology for enhancing OSC device performance. We also offer our insight into the opportunities and challenges in improving the OSC device performance of organoboron photovoltaic materials.
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Affiliation(s)
- Junhui Miao
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China.
| | - Yinghui Wang
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China. .,University of Science and Technology of China, Hefei 230026, P. R. China
| | - Jun Liu
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China.
| | - Lixiang Wang
- State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, P. R. China.
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56
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Schweda B, Reinfelds M, Hofstadler P, Trimmel G, Rath T. Recent Progress in the Design of Fused-Ring Non-Fullerene Acceptors-Relations between Molecular Structure and Optical, Electronic, and Photovoltaic Properties. ACS APPLIED ENERGY MATERIALS 2021; 4:11899-11981. [PMID: 35856015 PMCID: PMC9286321 DOI: 10.1021/acsaem.1c01737] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Organic solar cells are on the dawn of the next era. The change of focus toward non-fullerene acceptors has introduced an enormous amount of organic n-type materials and has drastically increased the power conversion efficiencies of organic photovoltaics, now exceeding 18%, a value that was believed to be unreachable some years ago. In this Review, we summarize the recent progress in the design of ladder-type fused-ring non-fullerene acceptors in the years 2018-2020. We thereby concentrate on single layer heterojunction solar cells and omit tandem architectures as well as ternary solar cells. By analyzing more than 700 structures, we highlight the basic design principles and their influence on the optical and electrical structure of the acceptor molecules and review their photovoltaic performance obtained so far. This Review should give an extensive overview of the plenitude of acceptor motifs but will also help to understand which structures and strategies are beneficial for designing materials for highly efficient non-fullerene organic solar cells.
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57
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Li Y, Liu X, Liu H, Yu J, Li Z. Unfused Nonfullerene Acceptors Based on Simple Dipolar Merocyanines. Chemistry 2021; 27:18103-18108. [PMID: 34751986 DOI: 10.1002/chem.202103278] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Indexed: 12/21/2022]
Abstract
Merocyanine (MC) dyes exhibit facile synthesis and attractive optical properties, making them widely studied as the donor materials in organic solar cells (OSCs). In this study, for the first time, simple indole-based MCs are successfully designed as unfused nonfullerene acceptors (NFAs) for OSCs by forming dimers with A-D-π-D-A structure, which possess enhanced photostability compared to the well-known ITIC acceptor and high electron mobility in blend films. When blended with P3HT donor, one of the dimers, i. e. Z2, shows a good cell efficiency of 3.53 %, which outperforms the performance of most of P3HT/NFA blends, particularly for unfused systems, and thus indicates good potential of simple MCs as NFAs.
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Affiliation(s)
- Yibin Li
- Key Laboratory for Material Chemistry of Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan, P. R. China
| | - Xin Liu
- MIIT Key Laboratory of Advanced Solid Laser, School of Electronic and Optical Engineering, Nanjing University of Science and Technology, 200 Xiaolingwei Street, Xuanwu District, Nanjing, P. R. China
| | - Hongtao Liu
- Key Laboratory for Material Chemistry of Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan, P. R. China
| | - Jiangsheng Yu
- MIIT Key Laboratory of Advanced Solid Laser, School of Electronic and Optical Engineering, Nanjing University of Science and Technology, 200 Xiaolingwei Street, Xuanwu District, Nanjing, P. R. China
| | - Zhong'an Li
- Key Laboratory for Material Chemistry of Energy Conversion and Storage, Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, 1037 Luoyu Road, Wuhan, P. R. China
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58
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Yuan L, Liang S, Xiao C, Chen Q, Li W. Near-Infrared Nonfullerene Acceptors Based on 4H-Cyclopenta[1,2-b:5,4-b']dithiophene for Organic Solar Cells and Organic Field-Effect Transistors. Chem Asian J 2021; 16:4171-4178. [PMID: 34738329 DOI: 10.1002/asia.202101147] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Revised: 10/29/2021] [Indexed: 11/07/2022]
Abstract
The development of nonfullerene small molecular acceptors (NF-SMAs) has dominated the improvement of efficiencies for organic solar cells and the near-infrared (NIR) absorption is the primary feature of NF-SMAs compared with fullerene derivatives. In this article, a series of acceptor-donor-acceptor-structured NF-SMAs (named CPICs) containing 4H-cyclopenta[1,2-b : 5,4-b']dithiophene (CPDT) electron donor and F-substituted 2-(3-oxo-2,3-dihydro-1H-inden-1-ylidene)malononitrile (2FIC) as electron acceptor were designed and synthesized. With the increase of CPDT units, the elongated conjugations broadened the absorption range of the acceptors and tuned their energy levels sequentially. Therefore, their charge-transporting polarities switched from electron-only type to bipolar mode in organic field-effect transistors. Moreover, these changes also influenced the voltages, current densities, and eventual PCEs of their corresponding cells. When blending with PBDB-T, a champion efficiency of 10.01% was achieved in CPIC-2 based cells. This work demonstrated the importance of absorptions, suitable energy levels and charge transports in improving the efficiencies of organic solar cells.
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Affiliation(s)
- Likai Yuan
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing, 100029, P.R. China
| | - Shijie Liang
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing, 100029, P.R. China
| | - Chengyi Xiao
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing, 100029, P.R. China
| | - Qiaomei Chen
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing, 100029, P.R. China
| | - Weiwei Li
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing, 100029, P.R. China
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59
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Gopikrishna P, Choi H, Kim DH, Hwang JH, Lee Y, Jung H, Yu G, Raju TB, Lee E, Lee Y, Cho S, Kim B. Impact of symmetry-breaking of non-fullerene acceptors for efficient and stable organic solar cells. Chem Sci 2021; 12:14083-14097. [PMID: 34760192 PMCID: PMC8565381 DOI: 10.1039/d1sc04153c] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Accepted: 10/07/2021] [Indexed: 11/21/2022] Open
Abstract
The concurrent enhancement of short-circuit current (JSC) and open-circuit voltage (VOC) is a key problem in the preparation of efficient organic solar cells (OSCs). In this paper, we report efficient and stable OSCs based on an asymmetric non-fullerene acceptor (NFA) IPC-BEH-IC2F. The NFA consists of a weak electron-donor core dithienothiophen[3,2-b]-pyrrolobenzothiadiazole (BEH) and two kinds of strong electron-acceptor (A) units [9H-indeno[1,2-b]pyrazine-2,3-dicarbonitrile (IPC) with a tricyclic fused system and 2-(5,6-difluoro-3-oxo-2,3-dihydro-1H-inden-1-ylidene)malononitrile (IC2F)]. For comparison, the symmetric NFAs IPC-BEH-IPC and IC2F-BEH-IC2F were characterised. The kind of flanking A unit significantly affects the light absorption features and electronic structures of the NFAs. The asymmetric IPC-BEH-IC2F has the highest extinction coefficient among the three NFAs owing to its strong dipole moment and highly crystalline feature. Its highest occupied molecular orbital (HOMO) and lowest unoccupied molecular orbital (LUMO) levels lie between those of the IPC-BEH-IPC and IC2F-BEH-IC2F molecules. The IPC group also promotes molecular packing through the tricyclic π-conjugated system and achieves increased crystallinity compared to that of the IC2F group. Inverted-type photovoltaic devices based on p-type polymer:NFA blends with PBDB-T and PM6 polymers as p-type polymers were fabricated. Among all these devices, the PBDB-T:IPC-BEH-IC2F blend device displayed the best photovoltaic properties because the IPC unit provides balanced electronic and morphological characteristics. More importantly, the PBDB-T:IPC-BEH-IC2F-based device exhibited the best long-term stability owing to the strongly interacting IPC moiety and the densely packed PBDB-T:IPC-BEH-IC2F film. These results demonstrate that asymmetric structural modifications of NFAs are an effective way for simultaneously improving the photovoltaic performance and stability of OSCs. A 9H-indeno[1,2-b]pyrazine-2,3-dicarbonitrile (IPC) moiety in asymmetric non-fullerene acceptors promotes the formation of a densely packed crystalline structure, enabling efficient and long-term stable organic solar cells.![]()
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Affiliation(s)
- Peddaboodi Gopikrishna
- Department of Chemistry, Ulsan National Institute of Science and Technology (UNIST) 50 UNIST-gil Ulsan 44919 Republic of Korea
| | - Huijeong Choi
- Department of Chemistry, Ulsan National Institute of Science and Technology (UNIST) 50 UNIST-gil Ulsan 44919 Republic of Korea
| | - Do Hui Kim
- Department of Physics and EHSRC, University of Ulsan 93 Daehak-ro, Nam-gu Ulsan 44610 Republic of Korea
| | - Jun Ho Hwang
- School of Materials Science and Engineering, Gwangju Institute of Science and Technology (GIST) 123 Cheomdangwagi-ro, Buk-gu Gwangju 61005 Republic of Korea
| | - Youngwan Lee
- Department of Chemistry, Ulsan National Institute of Science and Technology (UNIST) 50 UNIST-gil Ulsan 44919 Republic of Korea
| | - Hyeonwoo Jung
- Department of Energy Science and Engineering, Daegu Gyeongbuk Institute of Science and Technology (DGIST) 333, Techno Jungang-daero, Hyeonpung-eup, Dalseong-gun Daegu 42988 Republic of Korea
| | - Gyeonghwa Yu
- Department of Energy Science and Engineering, Daegu Gyeongbuk Institute of Science and Technology (DGIST) 333, Techno Jungang-daero, Hyeonpung-eup, Dalseong-gun Daegu 42988 Republic of Korea
| | - Telugu Bhim Raju
- Department of Chemistry, Ulsan National Institute of Science and Technology (UNIST) 50 UNIST-gil Ulsan 44919 Republic of Korea
| | - Eunji Lee
- School of Materials Science and Engineering, Gwangju Institute of Science and Technology (GIST) 123 Cheomdangwagi-ro, Buk-gu Gwangju 61005 Republic of Korea
| | - Youngu Lee
- Department of Energy Science and Engineering, Daegu Gyeongbuk Institute of Science and Technology (DGIST) 333, Techno Jungang-daero, Hyeonpung-eup, Dalseong-gun Daegu 42988 Republic of Korea
| | - Shinuk Cho
- Department of Physics and EHSRC, University of Ulsan 93 Daehak-ro, Nam-gu Ulsan 44610 Republic of Korea
| | - BongSoo Kim
- Department of Chemistry, Ulsan National Institute of Science and Technology (UNIST) 50 UNIST-gil Ulsan 44919 Republic of Korea
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60
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Synergistic effect of solvent and solid additives on morphology optimization for high-performance organic solar cells. Sci China Chem 2021. [DOI: 10.1007/s11426-021-1114-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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61
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Ye L, Gao M, Hou J. Advances and prospective in thermally stable nonfullerene polymer solar cells. Sci China Chem 2021. [DOI: 10.1007/s11426-021-1087-8] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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62
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Zheng Y, Bao S, Yang H, Fan H, Fan D, Cui C, Li Y. Indacenodithiophene-based small-molecule donor with strong crystallinity for efficient organic solar cells. Chem Commun (Camb) 2021; 57:10767-10770. [PMID: 34585680 DOI: 10.1039/d1cc04559h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Two indacenodithiophene (IDT)-based small-molecule analogues (IDBT and IDBT-Cl) are designed as donor materials for organic solar cells. Relative to the amorphous IDBT-Cl, the IDBT with strong crystallinity shows overall better photovoltaic performance when blended with a Y6 acceptor. The results demonstrate the great potential of IDT units in designing efficient small-molecule donors.
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Affiliation(s)
- Yan Zheng
- Laboratory of Advanced Optoelectronic Materials, Suzhou Key Laboratory of Novel Semiconductor-Optoelectronics Materials and Devices, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China.
| | - Sunan Bao
- Laboratory of Advanced Optoelectronic Materials, Suzhou Key Laboratory of Novel Semiconductor-Optoelectronics Materials and Devices, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China.
| | - Hang Yang
- Laboratory of Advanced Optoelectronic Materials, Suzhou Key Laboratory of Novel Semiconductor-Optoelectronics Materials and Devices, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China.
| | - Hongyu Fan
- Laboratory of Advanced Optoelectronic Materials, Suzhou Key Laboratory of Novel Semiconductor-Optoelectronics Materials and Devices, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China.
| | - Dongdong Fan
- Laboratory of Advanced Optoelectronic Materials, Suzhou Key Laboratory of Novel Semiconductor-Optoelectronics Materials and Devices, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China.
| | - Chaohua Cui
- Laboratory of Advanced Optoelectronic Materials, Suzhou Key Laboratory of Novel Semiconductor-Optoelectronics Materials and Devices, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China.
| | - Yongfang Li
- Laboratory of Advanced Optoelectronic Materials, Suzhou Key Laboratory of Novel Semiconductor-Optoelectronics Materials and Devices, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China. .,Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
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63
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Matsumoto K, Yamashita K, Sakoda Y, Ezoe H, Tanaka Y, Okazaki T, Ohkita M, Tanaka S, Aoki Y, Kiriya D, Kashimura S, Maekawa M, Kuroda‐Sowa T, Okubo T. Organic Thin‐film Solar Cells Using Benzotrithiophene Derivatives Bearing Acceptor Units as Non‐Fullerene Acceptors. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100178] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Kouichi Matsumoto
- Department of Chemistry School of Science and Engineering Kindai University Kowakae 3-4-1 Higashi-Osaka Osaka 577-8502 Japan
| | - Kazuhiro Yamashita
- Department of Chemistry School of Science and Engineering Kindai University Kowakae 3-4-1 Higashi-Osaka Osaka 577-8502 Japan
| | - Yuuki Sakoda
- Department of Chemistry School of Science and Engineering Kindai University Kowakae 3-4-1 Higashi-Osaka Osaka 577-8502 Japan
| | - Hinata Ezoe
- Department of Chemistry School of Science and Engineering Kindai University Kowakae 3-4-1 Higashi-Osaka Osaka 577-8502 Japan
| | - Yuki Tanaka
- Department of Chemistry School of Science and Engineering Kindai University Kowakae 3-4-1 Higashi-Osaka Osaka 577-8502 Japan
| | - Tatsuya Okazaki
- Department of Chemistry School of Science and Engineering Kindai University Kowakae 3-4-1 Higashi-Osaka Osaka 577-8502 Japan
| | - Misaki Ohkita
- Department of Chemistry School of Science and Engineering Kindai University Kowakae 3-4-1 Higashi-Osaka Osaka 577-8502 Japan
| | - Senku Tanaka
- Department of Electric and Electronic Engineering Faculty of Science and Engineering Kindai University Kowakae 3-4-1 Higashi-Osaka Osaka 577-8502 Japan
- Research Institute for Science and Technology Kindai University Kowakae 3-4-1 Higashi-Osaka Osaka 577-8502 Japan
| | - Yuki Aoki
- Department of Physics and Electronics Osaka Prefecture University 1-1 Gakuen-cho, Naka-ku Sakai-shi Osaka 599-8531 Japan
| | - Daisuke Kiriya
- Department of Physics and Electronics Osaka Prefecture University 1-1 Gakuen-cho, Naka-ku Sakai-shi Osaka 599-8531 Japan
| | - Shigenori Kashimura
- Department of Chemistry School of Science and Engineering Kindai University Kowakae 3-4-1 Higashi-Osaka Osaka 577-8502 Japan
| | - Masahiko Maekawa
- Research Institute for Science and Technology Kindai University Kowakae 3-4-1 Higashi-Osaka Osaka 577-8502 Japan
| | - Takayoshi Kuroda‐Sowa
- Department of Chemistry School of Science and Engineering Kindai University Kowakae 3-4-1 Higashi-Osaka Osaka 577-8502 Japan
| | - Takashi Okubo
- Department of Chemistry School of Science and Engineering Kindai University Kowakae 3-4-1 Higashi-Osaka Osaka 577-8502 Japan
- Research Institute for Science and Technology Kindai University Kowakae 3-4-1 Higashi-Osaka Osaka 577-8502 Japan
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64
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Ma S, Feng H, Liu X, Hu Z, Yang X, Liang Y, Zhang J, Huang F, Cao Y. Dodecacyclic-Fused Electron Acceptors with Multiple Electron-Deficient Units for Efficient Organic Solar Cells. CHEMSUSCHEM 2021; 14:3544-3552. [PMID: 33847443 DOI: 10.1002/cssc.202100592] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Revised: 04/11/2021] [Indexed: 06/12/2023]
Abstract
Fused aromatic cores in non-fullerene electron acceptors (NFEAs) play a significant role in determining their optoelectronic properties and photovoltaic performance. In this work, a dodecacyclic-fused core with three electron-deficient units is synthesized through a double intramolecular Cadogan reduction cyclization. Terminal groups with different halogen substitution (F or Cl) are grafted onto the dodecacyclic-fused core to afford MS-4F and MS-4Cl, both of which showed strong and broad absorption, narrow bandgaps around 1.40 eV, and variable molecular packing model in pristine and blend films. Photovoltaic performance of solar cells containing MS-4F and MS-4Cl as NFEAs were investigated with resultant power conversion efficiencies (PCEs) of 11.75 % and 11.79 %, respectively. The mechanism study indicates that both of PBDB-T : MS-4F- and PBDB-T : MS-4Cl-based devices displayed high hole and electron mobility values, efficient charge transfer, and low charge recombination etc. These results indicate that designing multiple-fused aromatic cores with multiple electron-deficient units is a promising strategy to obtain high-performance NFEAs.
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Affiliation(s)
- Shanshan Ma
- Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou, 510640, P. R. China
| | - Hexiang Feng
- Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou, 510640, P. R. China
| | - Xiang Liu
- Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou, 510640, P. R. China
| | - Zhicheng Hu
- Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou, 510640, P. R. China
| | - Xiye Yang
- Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou, 510640, P. R. China
| | - Yuanying Liang
- Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou, 510640, P. R. China
| | - Jie Zhang
- Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou, 510640, P. R. China
| | - Fei Huang
- Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou, 510640, P. R. China
| | - Yong Cao
- Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou, 510640, P. R. China
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65
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Xu X, Liu W, Luo X, Chen H, Wei Q, Yuan J, Zou Y. An Overview of High-Performance Indoor Organic Photovoltaics. CHEMSUSCHEM 2021; 14:3428-3448. [PMID: 33899334 DOI: 10.1002/cssc.202100386] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Revised: 04/12/2021] [Indexed: 06/12/2023]
Abstract
In recent years, indoor organic photovoltaics (IOPVs) have attracted increasing attention because of their ability to power microelectronic devices and sensors, especially for the internet of things (IoT). In contrast with silicon-based indoor PV, the IOPVs exhibit better performance due to their tunable bandgap via molecular design, which could achieve a better spectrum matched with the lighting sources. Based on the simulated power conversion efficiency (PCE) in theory, the maximum value can achieve over 50 % under the white LED illumination, which is much higher than the practical top PCE of 31 %, indicating there is room further to improve the performance of IOPVs by various optimization methods. Based on these benefits, the recent progress in IOPVs with different methods was summarizes, and light was shed on the remaining challenges for achieving practical applications in the future. In the end, some guidelines for the development of IOPVs were proposed.
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Affiliation(s)
- Xiang Xu
- College of Chemistry and Chemical Engineering, Central South University, Changsha, 140083, Hunan, P.R. China
| | - Wei Liu
- College of Chemistry and Chemical Engineering, Central South University, Changsha, 140083, Hunan, P.R. China
| | - Xiaoyan Luo
- College of Chemistry and Chemical Engineering, Central South University, Changsha, 140083, Hunan, P.R. China
| | - Hongbo Chen
- Chipsemi Semiconductor (Ningbo) Co. Ltd., Shanghai, 201203, P.R. China
| | - Qingya Wei
- College of Chemistry and Chemical Engineering, Central South University, Changsha, 140083, Hunan, P.R. China
| | - Jun Yuan
- College of Chemistry and Chemical Engineering, Central South University, Changsha, 140083, Hunan, P.R. China
| | - Yingping Zou
- College of Chemistry and Chemical Engineering, Central South University, Changsha, 140083, Hunan, P.R. China
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66
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Zheng B, Huo L. Recent Advances of Furan and Its Derivatives Based Semiconductor Materials for Organic Photovoltaics. SMALL METHODS 2021; 5:e2100493. [PMID: 34928062 DOI: 10.1002/smtd.202100493] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Revised: 06/30/2021] [Indexed: 05/05/2023]
Abstract
The state-of-the-art bulk-heterojunction (BHJ)-type organic solar cells (OSCs) have exhibited power conversion efficiencies (PCEs) of exceeding 18%. Thereinto, thiophene and its fused-ring derivatives play significant roles in facilitating the development of OSCs due to their excellent semiconducting natures. Furan as thiophene analogue, is a ubiquitous motif in naturally occurring organic compounds. Driven by the advantages of furan, such as less steric hindrance, good solubility, excellent stacking, strong rigidity and fluorescence, biomass derived fractions, more and more research groups focus on the furan-based materials for using in OSCs in the past decade. To systematically understand the developments of furan-based photovoltaic materials, the relationships between the molecular structures, optoelectronic properties, and photovoltaic performances for the furan-based semiconductor materials including single furan, benzofuran, benzodifuran (BDF) (containing thienobenzofuran (TBF)), naphthodifurans (NDF), and polycyclic furan are summarized. Finally, the empirical regularities and perspectives of the development of this kind of new organic semiconductor materials are extracted.
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Affiliation(s)
- Bing Zheng
- School of Chemistry, Beihang University, Beijing, 100191, P. R. China
| | - Lijun Huo
- School of Chemistry, Beihang University, Beijing, 100191, P. R. China
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67
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Wang Y, Fan Q, Wang Y, Fang J, Liu Q, Zhu L, Qiu J, Guo X, Liu F, Su W, Zhang M. Modulating Crystallinity and Miscibility via Side‐chain Variation Enable High Performance
All‐Small‐Molecule
Organic Solar Cells. CHINESE J CHEM 2021. [DOI: 10.1002/cjoc.202100216] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Yang Wang
- Laboratory of Advanced Optoelectronic Materials, College of Chemistry, Chemical Engineering and Materials Science Soochow University Suzhou Jiangsu 215123 China
| | - Qunping Fan
- Department of Chemistry City University of Hong Kong Kowloon 999077 Hong Kong, China
| | - Yulong Wang
- Laboratory of Advanced Optoelectronic Materials, College of Chemistry, Chemical Engineering and Materials Science Soochow University Suzhou Jiangsu 215123 China
| | - Jin Fang
- Laboratory of Advanced Optoelectronic Materials, College of Chemistry, Chemical Engineering and Materials Science Soochow University Suzhou Jiangsu 215123 China
| | - Qi Liu
- Laboratory of Advanced Optoelectronic Materials, College of Chemistry, Chemical Engineering and Materials Science Soochow University Suzhou Jiangsu 215123 China
| | - Lei Zhu
- Frontiers Science Center for Transformative Molecules, School of Chemistry and Chemical Engineering Shanghai Jiao Tong University Shanghai 200240 China
| | - Jinjing Qiu
- Laboratory of Advanced Optoelectronic Materials, College of Chemistry, Chemical Engineering and Materials Science Soochow University Suzhou Jiangsu 215123 China
| | - Xia Guo
- Laboratory of Advanced Optoelectronic Materials, College of Chemistry, Chemical Engineering and Materials Science Soochow University Suzhou Jiangsu 215123 China
| | - Feng Liu
- Frontiers Science Center for Transformative Molecules, School of Chemistry and Chemical Engineering Shanghai Jiao Tong University Shanghai 200240 China
| | - Wenyan Su
- Guangdong Provincial Key Laboratory of Optical Fiber Sensing and Communications, Siyuan Laboratory, Department of Physics Jinan University Guangzhou Guangdong 510632 China
| | - Maojie Zhang
- Laboratory of Advanced Optoelectronic Materials, College of Chemistry, Chemical Engineering and Materials Science Soochow University Suzhou Jiangsu 215123 China
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68
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Lin J, Guo Q, Liu Q, Lv J, Liang H, Wang Y, Zhu L, Liu F, Guo X, Zhang M. A Noncovalently
Fused‐Ring
Asymmetric Electron Acceptor Enables Efficient Organic Solar Cells. CHINESE J CHEM 2021. [DOI: 10.1002/cjoc.202100323] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Ji Lin
- Laboratory of Advanced Optoelectronic Materials, College of Chemistry, Chemical Engineering and Materials Science Soochow University Suzhou Jiangsu 215123 China
| | - Qing Guo
- Laboratory of Advanced Optoelectronic Materials, College of Chemistry, Chemical Engineering and Materials Science Soochow University Suzhou Jiangsu 215123 China
- Henan Institute of Advanced Technology Zhengzhou University Zhengzhou Henan 450003 China
| | - Qi Liu
- Laboratory of Advanced Optoelectronic Materials, College of Chemistry, Chemical Engineering and Materials Science Soochow University Suzhou Jiangsu 215123 China
| | - Junfang Lv
- Laboratory of Advanced Optoelectronic Materials, College of Chemistry, Chemical Engineering and Materials Science Soochow University Suzhou Jiangsu 215123 China
| | - Haiyan Liang
- Laboratory of Advanced Optoelectronic Materials, College of Chemistry, Chemical Engineering and Materials Science Soochow University Suzhou Jiangsu 215123 China
| | - Yang Wang
- Laboratory of Advanced Optoelectronic Materials, College of Chemistry, Chemical Engineering and Materials Science Soochow University Suzhou Jiangsu 215123 China
| | - Lei Zhu
- Frontiers Science Center for Transformative Molecules, School of Chemistry and Chemical Engineering Shanghai Jiao Tong University Shanghai 200240 China
| | - Feng Liu
- Frontiers Science Center for Transformative Molecules, School of Chemistry and Chemical Engineering Shanghai Jiao Tong University Shanghai 200240 China
| | - Xia Guo
- Laboratory of Advanced Optoelectronic Materials, College of Chemistry, Chemical Engineering and Materials Science Soochow University Suzhou Jiangsu 215123 China
| | - Maojie Zhang
- Laboratory of Advanced Optoelectronic Materials, College of Chemistry, Chemical Engineering and Materials Science Soochow University Suzhou Jiangsu 215123 China
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69
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High-performance all-polymer solar cells enabled by a novel low bandgap non-fully conjugated polymer acceptor. Sci China Chem 2021. [DOI: 10.1007/s11426-021-1020-7] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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70
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Liu Q, Fang J, Wu J, Zhu L, Guo X, Liu F, Zhang M. Tuning Aggregation Behavior of Polymer Donor
via
Molecular‐Weight
Control for Achieving 17.1% Efficiency Inverted Polymer Solar Cells. CHINESE J CHEM 2021. [DOI: 10.1002/cjoc.202100112] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Qi Liu
- Laboratory of Advanced Optoelectronic Materials, College of Chemistry, Chemical Engineering and Materials Science, Soochow University Suzhou, Jiangsu 215123, China Frontiers Science Center for Transformative Molecules, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University Shanghai 200240 China
| | - Jin Fang
- Laboratory of Advanced Optoelectronic Materials, College of Chemistry, Chemical Engineering and Materials Science, Soochow University Suzhou, Jiangsu 215123, China Frontiers Science Center for Transformative Molecules, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University Shanghai 200240 China
| | - Jingnan Wu
- Laboratory of Advanced Optoelectronic Materials, College of Chemistry, Chemical Engineering and Materials Science, Soochow University Suzhou, Jiangsu 215123, China Frontiers Science Center for Transformative Molecules, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University Shanghai 200240 China
| | - Lei Zhu
- Laboratory of Advanced Optoelectronic Materials, College of Chemistry, Chemical Engineering and Materials Science, Soochow University Suzhou, Jiangsu 215123, China Frontiers Science Center for Transformative Molecules, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University Shanghai 200240 China
| | - Xia Guo
- Laboratory of Advanced Optoelectronic Materials, College of Chemistry, Chemical Engineering and Materials Science, Soochow University Suzhou, Jiangsu 215123, China Frontiers Science Center for Transformative Molecules, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University Shanghai 200240 China
| | - Feng Liu
- Laboratory of Advanced Optoelectronic Materials, College of Chemistry, Chemical Engineering and Materials Science, Soochow University Suzhou, Jiangsu 215123, China Frontiers Science Center for Transformative Molecules, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University Shanghai 200240 China
| | - Maojie Zhang
- Laboratory of Advanced Optoelectronic Materials, College of Chemistry, Chemical Engineering and Materials Science, Soochow University Suzhou, Jiangsu 215123, China Frontiers Science Center for Transformative Molecules, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University Shanghai 200240 China
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71
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Zhu C, Meng L, Zhang J, Qin S, Lai W, Qiu B, Yuan J, Wan Y, Huang W, Li Y. A Quinoxaline-Based D-A Copolymer Donor Achieving 17.62% Efficiency of Organic Solar Cells. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2100474. [PMID: 33914352 DOI: 10.1002/adma.202100474] [Citation(s) in RCA: 57] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Revised: 03/06/2021] [Indexed: 06/12/2023]
Abstract
Side-chain engineering has been an effective strategy in tuning electronic energy levels, intermolecular interaction, and aggregation morphology of organic photovoltaic materials, which is very important for improving the power conversion efficiency (PCE) of organic solar cells (OSCs). In this work, two D-A copolymers, PBQ5 and PBQ6, are designed and synthesized based on bithienyl-benzodithiophene (BDTT) as the donor (D) unit, difluoroquinoxaline (DFQ) with different side chains as the acceptor (A) unit, and thiophene as the π-bridges. PBQ6 with two alkyl-substituted fluorothiophene side chains on the DFQ units possesses redshifted absorption, stronger intermolecular interaction, and higher hole mobility than PBQ5 with two alkyl side chains on the DFQ units. The blend film of the PBQ6 donor with the Y6 acceptor shows higher and balanced hole/electron mobilities, less charge carrier recombination, and more favorable aggregation morphology. Therefore, the OSC based on PBQ6:Y6 achieves a PCE as high as 17.62% with a high fill factor of 77.91%, which is significantly higher than the PCE (15.55%) of the PBQ5:Y6-based OSC. The PCE of 17.62% is by far one of the highest efficiencies for the binary OSCs with polymer donor and Y6 acceptor.
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Affiliation(s)
- Can Zhu
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
- School of Chemical Science, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Lei Meng
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
- School of Chemical Science, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Jinyuan Zhang
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
| | - Shucheng Qin
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
- School of Chemical Science, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Wenbin Lai
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
- School of Chemical Science, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Beibei Qiu
- Key Laboratory of Solid State Optoelectronic Devices of Zhejiang Province, College of Physics and Electronic Information Engineering, Zhejiang Normal University, Jinhua, Zhejiang, 321004, China
| | - Jun Yuan
- College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, China
| | - Yan Wan
- College of Chemistry, Beijing Normal University, Beijing, 100875, China
| | - Wenchao Huang
- Department of Materials Science and Engineering, Monash University, Clayton, VIC, 3168, Australia
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070, China
- Foshan Xianhu Laboratory of the Advanced Energy Science and Technology Guangdong Laboratory, Xianhu Hydrogen Valley, Foshan, 528216, China
| | - Yongfang Li
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
- School of Chemical Science, University of Chinese Academy of Sciences, Beijing, 100049, China
- Laboratory of Advanced Optoelectronic Materials, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, Jiangsu, 215123, China
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72
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Qi Y, Chen H, Wang X, Wei Q, Li D, Li Y, Jiang L, Chen G, Zou Y. Modifying side chain of non-fullerene acceptors to obtain efficient organic solar cells with high fill factor. Chem Phys 2021. [DOI: 10.1016/j.chemphys.2021.111172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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73
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Xu Y, Ji Q, Yin L, Zhang N, Liu T, Li N, He X, Wen G, Zhang W, Yu L, Murto P, Xu X. Synergistic Engineering of Substituents and Backbones on Donor Polymers: Toward Terpolymer Design of High-Performance Polymer Solar Cells. ACS APPLIED MATERIALS & INTERFACES 2021; 13:23993-24004. [PMID: 33974390 DOI: 10.1021/acsami.1c03794] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Design of terpolymers via copolymerization has emerged as a potential strategy for expanding the family of high-performing donor polymers and boosting the photovoltaic performance of non-fullerene polymer solar cells (PSCs). Herein, double-ester-substituted thiophenes and thienothiophenes are incorporated as third building blocks into the donor polymer PBDB-TF, developing two groups of terpolymers with donor-acceptor 1-donor-acceptor 2 (D-A1-D-A2)-type backbones. An optimum 10% concentration of double-ester-substituted thiophene units in PBDB-TF-T10 downshifts the molecular energy and increases the dielectric constant, and delivers proper miscibility and nanostructure in blends with the high-performing acceptor Y6. These characteristics are designed to synergistically enhance the photovoltage, photocurrent, and efficiency of PSCs. The resulting power conversion efficiency (PCE) of 16.4% surpasses the conventional PBDB-TF/Y6 PSCs, and it is among the best-performing PSCs based on PBDB-TF-derived terpolymers. Gratifyingly, PBDB-TF-T10 does not show significant batch-to-batch variation and it retains high PCEs above 16% in a broad range of molecular weights. This work introduces a facile strategy to easily synthesize terpolymers in combination with Y6 for the attainment of high-performing and reproducible non-fullerene PSCs.
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Affiliation(s)
- Yunxiang Xu
- College of Materials Science and Engineering, Ocean University of China, Qingdao 266100, China
| | - Qing Ji
- College of Materials Science and Engineering, Ocean University of China, Qingdao 266100, China
| | - Luqi Yin
- College of Materials Science and Engineering, Ocean University of China, Qingdao 266100, China
| | - Nan Zhang
- College of Materials Science and Engineering, Ocean University of China, Qingdao 266100, China
| | - Tong Liu
- College of Materials Science and Engineering, Ocean University of China, Qingdao 266100, China
| | - Na Li
- College of Materials Science and Engineering, Ocean University of China, Qingdao 266100, China
| | - Xiaochuan He
- Songshan Lake Materials Laboratory, Dongguan, Guangdong, 523808, China
| | - Guanzhao Wen
- School of Physics and Materials Science, Guangzhou University, Guangzhou 510006, China
| | - Wei Zhang
- School of Physics and Materials Science, Guangzhou University, Guangzhou 510006, China
| | - Liyang Yu
- School of Chemical Engineering, Sichuan University, Chengdu 610065, P. R. China
| | - Petri Murto
- Department of Chemistry, University of Cambridge, Cambridge CB2 1EW, U.K
| | - Xiaofeng Xu
- College of Materials Science and Engineering, Ocean University of China, Qingdao 266100, China
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74
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Qiu R, Wu Z, Li S, Jiang H, Wang Q, Chen Y, Liu X, Zhang L, Chen J. Replacing alkyl side chain of non-fullerene acceptor with siloxane-terminated side chain enables lower surface energy towards optimizing bulk-heterojunction morphology and high photovoltaic performance. Sci China Chem 2021. [DOI: 10.1007/s11426-021-9975-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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75
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High-performance polymer solar cells with efficiency over 18% enabled by asymmetric side chain engineering of non-fullerene acceptors. Sci China Chem 2021. [DOI: 10.1007/s11426-021-1013-0] [Citation(s) in RCA: 65] [Impact Index Per Article: 21.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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76
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Non-equivalent D-A copolymerization strategy towards highly efficient polymer donor for polymer solar cells. Sci China Chem 2021. [DOI: 10.1007/s11426-021-9988-6] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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77
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Zhang X, Qin L, Yu J, Li Y, Wei Y, Liu X, Lu X, Gao F, Huang H. High‐Performance Noncovalently Fused‐Ring Electron Acceptors for Organic Solar Cells Enabled by Noncovalent Intramolecular Interactions and End‐Group Engineering. Angew Chem Int Ed Engl 2021; 60:12475-12481. [DOI: 10.1002/anie.202100390] [Citation(s) in RCA: 82] [Impact Index Per Article: 27.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2021] [Revised: 02/23/2021] [Indexed: 11/07/2022]
Affiliation(s)
- Xin Zhang
- College of Materials Science and Opto-Electronic Technology &, Center of Materials Science and Optoelectronics Engineering &, CAS Center for Excellence in Topological Quantum Computation & CAS Key Laboratory of Vacuum Physics University of Chinese Academy of Sciences Beijing 100049 P. R. China
| | - Linqing Qin
- College of Materials Science and Opto-Electronic Technology &, Center of Materials Science and Optoelectronics Engineering &, CAS Center for Excellence in Topological Quantum Computation & CAS Key Laboratory of Vacuum Physics University of Chinese Academy of Sciences Beijing 100049 P. R. China
| | - Jianwei Yu
- Department of Physics, Chemistry and Biology (IFM) Linköping University 58183 Linköping Sweden
| | - Yuhao Li
- Department of Physics The Chinese University of Hong Kong New Territories Hong Kong 999077 P. R. China
| | - Yanan Wei
- College of Materials Science and Opto-Electronic Technology &, Center of Materials Science and Optoelectronics Engineering &, CAS Center for Excellence in Topological Quantum Computation & CAS Key Laboratory of Vacuum Physics University of Chinese Academy of Sciences Beijing 100049 P. R. China
| | - Xingzheng Liu
- College of Materials Science and Opto-Electronic Technology &, Center of Materials Science and Optoelectronics Engineering &, CAS Center for Excellence in Topological Quantum Computation & CAS Key Laboratory of Vacuum Physics University of Chinese Academy of Sciences Beijing 100049 P. R. China
| | - Xinhui Lu
- Department of Physics The Chinese University of Hong Kong New Territories Hong Kong 999077 P. R. China
| | - Feng Gao
- Department of Physics, Chemistry and Biology (IFM) Linköping University 58183 Linköping Sweden
| | - Hui Huang
- College of Materials Science and Opto-Electronic Technology &, Center of Materials Science and Optoelectronics Engineering &, CAS Center for Excellence in Topological Quantum Computation & CAS Key Laboratory of Vacuum Physics University of Chinese Academy of Sciences Beijing 100049 P. R. China
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78
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Zhang X, Qin L, Yu J, Li Y, Wei Y, Liu X, Lu X, Gao F, Huang H. High‐Performance Noncovalently Fused‐Ring Electron Acceptors for Organic Solar Cells Enabled by Noncovalent Intramolecular Interactions and End‐Group Engineering. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202100390] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Xin Zhang
- College of Materials Science and Opto-Electronic Technology &, Center of Materials Science and Optoelectronics Engineering &, CAS Center for Excellence in Topological Quantum Computation & CAS Key Laboratory of Vacuum Physics University of Chinese Academy of Sciences Beijing 100049 P. R. China
| | - Linqing Qin
- College of Materials Science and Opto-Electronic Technology &, Center of Materials Science and Optoelectronics Engineering &, CAS Center for Excellence in Topological Quantum Computation & CAS Key Laboratory of Vacuum Physics University of Chinese Academy of Sciences Beijing 100049 P. R. China
| | - Jianwei Yu
- Department of Physics, Chemistry and Biology (IFM) Linköping University 58183 Linköping Sweden
| | - Yuhao Li
- Department of Physics The Chinese University of Hong Kong New Territories Hong Kong 999077 P. R. China
| | - Yanan Wei
- College of Materials Science and Opto-Electronic Technology &, Center of Materials Science and Optoelectronics Engineering &, CAS Center for Excellence in Topological Quantum Computation & CAS Key Laboratory of Vacuum Physics University of Chinese Academy of Sciences Beijing 100049 P. R. China
| | - Xingzheng Liu
- College of Materials Science and Opto-Electronic Technology &, Center of Materials Science and Optoelectronics Engineering &, CAS Center for Excellence in Topological Quantum Computation & CAS Key Laboratory of Vacuum Physics University of Chinese Academy of Sciences Beijing 100049 P. R. China
| | - Xinhui Lu
- Department of Physics The Chinese University of Hong Kong New Territories Hong Kong 999077 P. R. China
| | - Feng Gao
- Department of Physics, Chemistry and Biology (IFM) Linköping University 58183 Linköping Sweden
| | - Hui Huang
- College of Materials Science and Opto-Electronic Technology &, Center of Materials Science and Optoelectronics Engineering &, CAS Center for Excellence in Topological Quantum Computation & CAS Key Laboratory of Vacuum Physics University of Chinese Academy of Sciences Beijing 100049 P. R. China
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79
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Zhang N, Li Z, Zhu C, Peng H, Zou Y. Bromination and increasing the molecular conjugation length of the non-fullerene small-molecule acceptor based on benzotriazole for efficient organic photovoltaics. RSC Adv 2021; 11:13571-13578. [PMID: 35423894 PMCID: PMC8697487 DOI: 10.1039/d1ra01348c] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Accepted: 03/16/2021] [Indexed: 11/21/2022] Open
Abstract
Two novel non-fullerene acceptors, namely BZIC-2Br and Y9-2Br, were synthesized by employing a ladder-type electron-deficient-based fused ring central with a benzotriazole core. Y9-2Br is obtained by extending the conjugate length of BZIC-2Br. Compared with BZIC-2Br, Y9-2Br possesses a lower optical bandgap of 1.32 eV with an absorption edge of 937 nm, exhibiting broader and stronger absorption band from 600 to 900 nm. Moreover, Y9-2Br exhibits excellent photovoltaic properties with V oc of 0.84 V, J sc of 21.38 mA cm-2 and FF of 67.11%, which achieves an impressive PCE of 12.05%. Our study demonstrates that bromination and effective extension of the conjugate length can modulate performance from different aspects to optimize photovoltaic characteristics.
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Affiliation(s)
- Na Zhang
- College of Chemistry and Chemical Engineering, Central South University Changsha Hunan 410083 China +86-731-88879616
| | - Zhe Li
- College of Chemistry and Chemical Engineering, Central South University Changsha Hunan 410083 China +86-731-88879616
| | - Can Zhu
- College of Chemistry and Chemical Engineering, Central South University Changsha Hunan 410083 China +86-731-88879616
| | - Hongjian Peng
- College of Chemistry and Chemical Engineering, Central South University Changsha Hunan 410083 China +86-731-88879616
| | - Yingping Zou
- College of Chemistry and Chemical Engineering, Central South University Changsha Hunan 410083 China +86-731-88879616
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80
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Pan F, Bai S, Liu T, Tang D, Wei X, Chen X, Lv M, Li Y. Single-wall carbon nanotube-containing cathode interfacial materials for high performance organic solar cells. Sci China Chem 2021. [DOI: 10.1007/s11426-020-9917-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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81
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Ternary organic solar cells: Improved optical and morphological properties allow an enhanced efficiency. CHINESE CHEM LETT 2021. [DOI: 10.1016/j.cclet.2020.09.032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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82
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Privado M, Guijarro FG, de la Cruz P, Singhal R, Langa F, Sharma GD. Fullerene/Non-fullerene Alloy for High-Performance All-Small-Molecule Organic Solar Cells. ACS APPLIED MATERIALS & INTERFACES 2021; 13:6461-6469. [PMID: 33524254 DOI: 10.1021/acsami.0c21844] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Organic solar cells (OSCs) that contain small molecules only were prepared with FG1 as the donor, a narrow band gap non-fullerene acceptor MPU4, and a wide band gap PC71BM. The OSCs based on optimized FG1:MPU4 (1:1.2) and FG1:PC71BM (1:1.5) active layers, respectively, gave power conversion efficiencies (PCEs) of 11.18% with a short circuit current (JSC) of 19.54 mA/cm2, open circuit voltage (VOC) of 0.97 V, and fill factor (FF) of 0.59, and 6.62% with a JSC of 12.50 mA/cm2, VOC of 0.84 V, and FF of 0.63%, respectively. A PCE of 13.26% was obtained from the optimized ternary FG1:PC71BM:MPU4 (1:0.3:0.9) OSCs and this arises because of the boost in a JSC of 21.91 mA/cm2 and FF of 0.68. The VOC of the ternary OSCs (0.89 V) lies between those for the OSCs based on FG1:MPU4 and FG1:PC71BM, which indicates the formation of an alloy of the two acceptors. The increase in JSC and FF in the ternary OSCs may result from the efficient energy transfer from PC71BM to MPU4 as well as more charge-transfer donor/acceptor interfaces, enhanced charge carrier mobilities resulting in better adjusted charge transport, and lower bimolecular and trap-assisted recombination. The appropriate phase separation, increased crystallinity, and reduced π-π stacking distance in the ternary active layer are consistent with the enhancement in the FF for OSCs based on a ternary active layer. The results of this work suggest the merging of the fullerene acceptor into the non-fullerene acceptor to form a fullerene/non-fullerene acceptor alloy, and this may be a viable approach to obtain high-performance OSCs.
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Affiliation(s)
- María Privado
- Universidad de Castilla-La Mancha, Institute of Nanoscience, Nanotechnology and Molecular Materials (INAMOL), Campus de la Fábrica de Armas, Toledo 45071, Spain
| | - Fernando G Guijarro
- Universidad de Castilla-La Mancha, Institute of Nanoscience, Nanotechnology and Molecular Materials (INAMOL), Campus de la Fábrica de Armas, Toledo 45071, Spain
| | - Pilar de la Cruz
- Universidad de Castilla-La Mancha, Institute of Nanoscience, Nanotechnology and Molecular Materials (INAMOL), Campus de la Fábrica de Armas, Toledo 45071, Spain
| | - Rahul Singhal
- Department of Physics, Malaviya National Institute of Technology, Jaipur 302017, Rajastan, India
| | - Fernando Langa
- Universidad de Castilla-La Mancha, Institute of Nanoscience, Nanotechnology and Molecular Materials (INAMOL), Campus de la Fábrica de Armas, Toledo 45071, Spain
| | - Ganesh D Sharma
- Department of Physics, The LNM Institute of Information Technology (Deemed University), Jamdoli, Jaipur 302031, Rajastan, India
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83
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84
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Zhang J, Xiang Y, Zheng S. From Y6 to BTPT-4F: a theoretical insight into the influence of the individual change of fused-ring skeleton length or side alkyl chains on molecular arrangements and electron mobility. NEW J CHEM 2021. [DOI: 10.1039/d1nj01515j] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Organic solar cells (OSCs) based on non-fullerene acceptor (NFA) Y6 have drawn tremendous attention due to the great progress in their power conversion efficiencies (PCEs).
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Affiliation(s)
- Jie Zhang
- School of Materials and Energy
- Chongqing Key Laboratory for Advanced Materials and Technologies of Clean Energies
- Southwest University
- Chongqing
- China
| | - Yunjie Xiang
- School of Materials and Energy
- Chongqing Key Laboratory for Advanced Materials and Technologies of Clean Energies
- Southwest University
- Chongqing
- China
| | - Shaohui Zheng
- School of Materials and Energy
- Chongqing Key Laboratory for Advanced Materials and Technologies of Clean Energies
- Southwest University
- Chongqing
- China
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85
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Yang J, Li QS, Li ZS. Theoretical design of asymmetric A-D 1A'D 2-A type non-fullerene acceptors for organic solar cells. Phys Chem Chem Phys 2021; 23:12321-12328. [PMID: 34019060 DOI: 10.1039/d1cp01155c] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The acceptor in organic solar cells (OSCs) is of paramount importance for achieving a high photovoltaic performance. Based on the well-known non-fullerene acceptor Y6, we designed a set of asymmetric A-D1A'D2-A type new acceptors Y6-C, Y6-N, Y6-O, Y6-Se, and Y6-Si by substituting the two S atoms of one thieno[3,2-b]thiophene unit with C, N, O, Se, and Si atoms, respectively. The electronic, optical, and crystal properties of Y6 and the designed acceptors, as well as the interfacial charge-transfer (CT) mechanisms between the donor PM6 and the investigated acceptors have been systematically studied. It is found that the newly designed asymmetric acceptors possess suitable energy levels and strong interactions with the donor PM6. Importantly, the newly designed acceptors exhibit enhanced light harvesting ability and more CT states with larger oscillator strengths in the 40 lowest excited states. Among the multiple CT mechanisms, the direct excitation of CT states is found to be more favored in the case of PM6/newly designed acceptors than that of PM6/Y6. This work not only offers a set of promising acceptors superior to Y6, but also demonstrates that designing acceptors with asymmetric structure could be an effective strategy to improve the performance of OSCs.
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Affiliation(s)
- Jie Yang
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science of Ministry of Education, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, 100081, Beijing, China.
| | - Quan-Song Li
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science of Ministry of Education, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, 100081, Beijing, China.
| | - Ze-Sheng Li
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science of Ministry of Education, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, 100081, Beijing, China.
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86
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Li Z, Huang B, Wang Y, Yuan W, Wu Y, Yu R, Xing G, Zou T, Tao Y. Design, synthesis and application in biological imaging of a novel red fluorescent dye based on a rhodanine derivative. RSC Adv 2020; 11:160-163. [PMID: 35423009 PMCID: PMC8690906 DOI: 10.1039/d0ra08998b] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2020] [Accepted: 12/10/2020] [Indexed: 01/23/2023] Open
Abstract
A novel acceptor–donor–acceptor type molecule, namely 2-triphenylamine-1,3-dia[2-(3-ethyl-4-oxo-thiazolidin-2-ylidene)-malononitrile] (2RDNTPA), is designed and synthesized. 2RDNTPA exhibits a large Stokes shift of 244 nm and red fluorescence emission of 629 nm with a decent photoluminescence quantum yield of 13%. Furthermore, as a potential red fluorescent dye, 2RDNTPA can be applied in fluorescence imaging of living cancer cells (HepG2) with negligible cytotoxicity and a half maximal inhibitory concentration much more than 100 μM. 2RDNTPA can be applied in fluorescence imaging of living cancer cells (HepG2) with red emission of 620 nm and negligible cytotoxicity with a half maximal inhibitory concentration much more than 100 μM.![]()
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Affiliation(s)
- Zijing Li
- Key Laboratory of Flexible Electronics, Institute of Advanced Materials, Nanjing Tech University Nanjing P. R. China
| | - Bin Huang
- College of Life Sciences and Chemistry, Jiangsu Key Laboratory of Biofunctional Molecule, Jiangsu Second Normal University Nanjing P. R. China
| | - Yuan Wang
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-Sen University Guangzhou P. R. China
| | - Wenbo Yuan
- Key Laboratory of Flexible Electronics, Institute of Advanced Materials, Nanjing Tech University Nanjing P. R. China
| | - Yijing Wu
- Key Laboratory of Flexible Electronics, Institute of Advanced Materials, Nanjing Tech University Nanjing P. R. China
| | - Ruitao Yu
- Key Laboratory of Flexible Electronics, Institute of Advanced Materials, Nanjing Tech University Nanjing P. R. China
| | - Guichuan Xing
- Institute of Applied Physics and Materials Engineering, University of Macau Macao SAR 999078 China
| | - Taotao Zou
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-Sen University Guangzhou P. R. China
| | - Youtian Tao
- Key Laboratory of Flexible Electronics, Institute of Advanced Materials, Nanjing Tech University Nanjing P. R. China
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87
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Li Y, Meng H, Huang J, Zhan C. Structural Cutting of Non-fullerene Acceptors by Chlorination: Effects of Substituent Number on Device Performance. ACS APPLIED MATERIALS & INTERFACES 2020; 12:50541-50549. [PMID: 33136385 DOI: 10.1021/acsami.0c16389] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Effects of chlorination on photovoltaic performance of organic solar cells are yet largely unclear though it is emerging as a special yet effective strategy to design highly efficient non-fullerene acceptors (NFAs). Herein, a bi-chlorine-substituted NFA with regioregularity, namely, bichlorinated dithienothiophen[3.2-b]- pyrrolobenzothiadiazole (BTP-2Cl-δ), is synthesized and compared to the non-chlorinated BTP and tetra-chlorine-substituted BTP-4Cl to study the effects of Cl number on the photovoltaic performance. From BTP to BTP-2Cl-δ and BTP-4Cl, the three molecules show gradually red-shifted absorption peaks, narrowed band gaps, and lowered highest occupied molecular orbitals (HOMOs) and lowest unoccupied molecular orbitals (LUMOs). Polymer solar cells are fabricated using PM6 as the donor and the three small molecules as the acceptors. From BTP to BTP-2Cl-δ, efficiencies (8.8 vs 15.4%) are significantly enhanced due to the better film morphology and strong crystallization of the BTP-2Cl-δ-based device, giving rise to boosted fill factors (FFs) and short-circuit current densities (JSC's). From BTP-2Cl-δ to BTP-4Cl, although JSC's (24.3 vs 25.0 mA cm-2) are slightly elevated due to the higher crystallinity of BTP-4Cl, leading to improved exciton dissociation and collection efficiencies, FFs (71.1 vs 68.0%) are obviously decreased owing to the unfavorable film morphology, unbalanced hole-electron mobilities, and higher charge recombination in BTP-4Cl-based devices. As such, the efficiency of the BTP-2Cl-δ-based device (15.4%) is superior to that of the BTP-4Cl-based device (14.5%). This work elucidates a design strategy by cutting the numbers of substituent chlorine to obtain desired energy levels and crystallization with optimal performance.
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Affiliation(s)
- Yuqing Li
- Key Laboratory of Excitonic Materials Chemistry and Devices (EMC&D), College of Chemistry and Environmental Science, Inner Mongolia Normal University, Huhhot 010022, China
- College of Materials Science and Engineering, Huaqiao University, Xiamen 361021, China
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Photochemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Huifeng Meng
- Key Laboratory of Excitonic Materials Chemistry and Devices (EMC&D), College of Chemistry and Environmental Science, Inner Mongolia Normal University, Huhhot 010022, China
- College of Materials Science and Engineering, Huaqiao University, Xiamen 361021, China
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Photochemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Jianhua Huang
- College of Materials Science and Engineering, Huaqiao University, Xiamen 361021, China
| | - Chuanlang Zhan
- Key Laboratory of Excitonic Materials Chemistry and Devices (EMC&D), College of Chemistry and Environmental Science, Inner Mongolia Normal University, Huhhot 010022, China
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Photochemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
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Wang W, Li Y, Zhan C, Xiao S, Tang C, Li G, Lu X, Zhang Q. Bis(thieno[3,2- b]thieno)cyclopentafluorene-Based Acceptor with Efficient and Comparable Photovoltaic Performance under Various Processing Conditions. ACS APPLIED MATERIALS & INTERFACES 2020; 12:49876-49885. [PMID: 33089683 DOI: 10.1021/acsami.0c13109] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
The morphology of a bulk heterojunction (BHJ) blend within a polymer solar cell (PSC) device plays a crucial role in its performance. The ideal morphology is generally achieved through molecular engineering and optimization under film processing conditions. Under different processing conditions, the deviation of the resulted morphology characteristics from the ideal one leads to the dispersion of device performance. For a specific donor/acceptor BHJ blend, it is of great challenge to maintain an efficient and comparable photovoltaic performance under various processing conditions. The solution to this challenge would be of great value in offering more choices for a suitable processing technology in practical applications. Based on the acceptor BTTFIC with the core of bis(thieno[3,2-b]thieno)cyclopentafluorene (BTTF) in our previous work, we chemically modified BTTFIC by fluorination of the end groups of 1,1-dicyanomethylene-3-indanones (IC) and the switching part of octyls in BTTF with 4-hexylphenyls to offer a novel acceptor (BTTFIC4F-Ar). The inverted PBDB-T-2Cl:BTTFIC4F-Ar blend device provided an average power conversion efficiency (PCE) of 10.61, 11.08, and 11.55% when processed under solvent annealing (SA), thermal annealing (TA), and additive treatment with 1,8-diodooctane (DIO), respectively. Different from the reported discrete performance under various processing conditions for a specific donor/acceptor BHJ blend, a low mean absolute performance deviation of 3% was attained. This slight enhancement trend was unexceptionally reflected on charge generation, transportation, and recombination within the blend films from SA, TA, and DIO conditions. A slightly improved ordering of BTTFIC4F-Ar within the DIO blend was observed. Meanwhile, very similar molecular packings as well as a close amorphous domain size of the mixture of PBDB-T-2Cl and BTTFIC4F-Ar within the three blends were observed. These morphological characteristics are in good agreement with the photoelectrical conversion performance of the blends under the three processing conditions. Furthermore, similar attenuation behaviors in performance were also observed. This investigation may provide new guidance on the molecular engineering of nonfullerene acceptors to achieve an efficient BHJ blend with more options for a suitable and cost-effective processing method in practical applications.
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Affiliation(s)
- Wei Wang
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, P. R. China
| | - Yuhao Li
- Department of Physics, The Chinese University of Hong Kong, Sha Tin, Hong Kong SAR 999077, P. R. China
| | - Chun Zhan
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, P. R. China
| | - Shengqiang Xiao
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, P. R. China
| | - Chenqing Tang
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, P. R. China
| | - Gongchun Li
- State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan 430070, P. R. China
| | - Xinhui Lu
- Department of Physics, The Chinese University of Hong Kong, Sha Tin, Hong Kong SAR 999077, P. R. China
| | - Qichun Zhang
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, Singapore
- Department of Materials Science and Engineering, City University of Hong Kong, Kowloon, Hong Kong SAR 999077, P. R. China
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89
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Zhang ZG, Bai Y, Li Y. Benzotriazole Based 2D-conjugated Polymer Donors for High Performance Polymer Solar Cells. CHINESE JOURNAL OF POLYMER SCIENCE 2020. [DOI: 10.1007/s10118-020-2496-5] [Citation(s) in RCA: 52] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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90
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Reducing energy loss via tuning energy levels of polymer acceptors for efficient all-polymer solar cells. Sci China Chem 2020. [DOI: 10.1007/s11426-020-9826-4] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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